Yup, tomato. Looks healthy too. What was there before? An heirloom or a hybrid. Hybrid seeds won't grow true to parent. If the tomato there before it was diseased, it may also have disease, which is why we ferment heirloom seeds when we save them. That said, you might get a nice plant out of it. Tomatoes, btw are heavy feeders and really need fresh (or freshly rotated) soil. I wouldn't put tomatoes in the same spot two years in a row without changing out the soil for a lot of new compost. Plant it in some rich soil up to it's top leaves.

Yes, a tomato. If you compost and throw in a variety of tomato scraps, the most likely to grow is the cherry or grape tomato.

Can I jump in on this and ask the same question with my random arrivals

cheers

Definitely a tomato

Yup, no doubt. It's a tomato seedling.

I had exactly the same popping out in my garden from seeds from last year :) (a bit too much though).

Awesome. Thanks all. What do you reckon, leave a few in? I only have a small planter and dont want to waste space if they will be duds. How long is a piece of string i guess....

When in doubt on this subject rub the leaves a little and tomato seedlings smell just like tomatoes!

Yup, definitely looks like a tomato seedling!

Does it smell like tomato?

I noticed a bunch of seedlings/weed growing in my potted tomato plant. 4 weeks ago the leaves started turning yellow with holes in them. Definitely looked diseased. Today, I finally took out the weed as I think might have caused the plant to be diseased. I know nothing about plants. Suggestions on if this was a good idea? The dark green ones looked like weed to me, so I pulled them out. I might have disturbed the roots🤷🏽‍♀️